![subject](/tpl/images/cats/biologiya.png)
Biology, 28.07.2019 14:30 franky2871
Aflatworm obtains oxygen needed for cellular respiration through simple diffusion. a human obtains oxygen by breathing it in from the air and into the lungs. which system is the flatworm missing? question 7 options: a digestive system a nervous system a respiratory system
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 16:30
Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect
Answers: 2
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 03:30
The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:10
Any sound above what db can cause hearing loss in human beings
Answers: 1
You know the right answer?
Aflatworm obtains oxygen needed for cellular respiration through simple diffusion. a human obtains o...
Questions
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 09.10.2019 08:30
![question](/tpl/images/cats/istoriya.png)
History, 09.10.2019 08:30
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.10.2019 08:30
![question](/tpl/images/cats/mat.png)
Mathematics, 09.10.2019 08:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.10.2019 08:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 09.10.2019 08:30
![question](/tpl/images/cats/mat.png)
Mathematics, 09.10.2019 08:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 09.10.2019 08:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 09.10.2019 08:30
![question](/tpl/images/cats/en.png)
English, 09.10.2019 08:30
![question](/tpl/images/cats/en.png)